What is the conversion of vacuum in inches of water to vacuum in inches of molten steel?

The conversion from vacuum in inches of water to vacuum in inches of molten steel is not direct due to the different densities and properties of the fluids. However, to estimate it, one can use the specific weight of molten steel compared to water. Typically, molten steel has a specific weight about 7.85 times that of water, so to convert inches of water to inches of molten steel, you would multiply the inches of water by approximately 7.85. Therefore, 1 inch of water vacuum would be roughly equivalent to 0.127 inches of molten steel vacuum.